Converting Lossless m4a to flac with tags

[Wirrunna]

Using dMC Batch Converter, I can convert Apple lossless m4a files to flac, but no tag info gets copied.
Should the tags be copied or have I missed some basic setup option ?

Right clicking on one of the source files shows the ID-Tag details (which include analysis and fingerprint tags from MusicIp), while the equivalent converted file shows <Contains no ID-Tags> .

[LtData]

Re: Converting Lossless m4a to flac with tags

Where did the ALAC files come from? What version of dMC and the m4a/ALAC codec are you using?

[Spoon]

Re: Converting Lossless m4a to flac with tags

Right click on a m4a file >> Edit Tag, does dbpoweramp show the id tags?
Right click on a converted flac file >> Edit Tag, does dbpoweramp show the id tags?

[Wirrunna]

Re: Converting Lossless m4a to flac with tags

Right click on a m4a file >> Edit Tag, does dbpoweramp show the id tags?

Yes, tags present are : Artist, Title, Album, Track, Year, Genre, Comment, analysis, Composer, Encoded by, fingerprint, Itunes_CDDB_IDs, iTunNORM

Right click on a converted flac file >> Edit Tag, does dbpoweramp show the id tags?

No, only <Contains no ID-Tags>

I have tried both dMC 13 and 13.1
The ALAC files were ripped with various versions of iTunes in my unenlightened ripping days before I purchased dBpoweramp.
When I right click on a m4a file >> Edit Tag, dBpoweramp displays a box of information including all the tags, but will not let me select the text and copy, is alt+Prnt Scrn the only way to capture this info?

Edit: In dBpoweramp Configuration, Codecs Tab, the m4a/mp4 Decoder does not have a release date against it, those decoders that do show release dates show Release 13.

[LtData]

Re: Converting Lossless m4a to flac with tags

The version number for the m4a codec is by the m4a encoder.

[Wirrunna]

Re: Converting Lossless m4a to flac with tags

Encoders: Apple Lossless and m4a Nero are both Release 8

[Spoon]

Re: Converting Lossless m4a to flac with tags

Install the [audio info] codec (codec central) and convert the m4a file to audio info, post the results, and the same for flac.

[Wirrunna]

Re: Converting Lossless m4a to flac with tags

========================================
Audio Details for: K:\iTunes Test\Alison Krauss\Forget About It\01 Stay.m4a

Length: 3 minutes 25 seconds
Channels: 2 (stereo)
Sample Rate: 44.1 KHz
Sample Size: 16 bit
Bit Rate: 1,411 kbps (CD)

Audio Properties:

Encoder: Apple Lossless (ALAC)
Audio Quality: Perfect (Lossless)
Sample Count: 9,078,720
ID Tag: Apple iTunes
Contains: ID Tag [Apple iTunes]
Gapless: Yes
Atoms: 'ftyp' 24 bytes, 'moov' 15 KB ["mvhd" 100 bytes, "trak" 11 KB, "udta" 4 KB], 'mdat' 21.98 MB

ID Tags:

Track: 1/11
Genre: Country
Artist: Alison Krauss
Title: Stay
Composer: Taylor, Allyson; Larry Byrom
Album: Forget About It
Year: 1999
analysis: MusicMagic DataAgEAAFb9mg2dIsM+hAzXUlIRnBCD5oDp40mU7z9PoAnPUo ABmn3yQ6whpcfLmoABgXCAAcbGwejkaehzgAHcnwCr73aAAbUo ixyAAZsLowHKH4Rp3uNHwLEdhEuBHuevldQ70YwKyKqj6Y9B8i etKZr+xYeBEoPljU67JMl63MfQXIAByhsC2+3YhHCtLoKJgAE=
fingerprint: MusicMagic FingerprintASQRPFIoyRvYJK8s4CB+HqAY1BDXDGwSmAjyDwU ULAU5FLwEjAp7BasTkhAeCLgF5AUjBS0G1AT6AvsDNgMPAawBA gEQAQkAywDbAQUBLAEk5/619Q5E+X4qRFHTAproRAsE++0KHQz8/qIF4O5l/xEKZgCa9wf/XwRz/XP66P7C/6P+0vtS/pz/vf+q/yr/iAAKACAAIgAYABgAGAAtAC4dACuPJXz3ziPlBMvAN82C/O37g/wM/OH4Y9yr3ED7ev06/z/4D/8C4cXr1vea+7H+P/0H+jr6M/3B/Sv9Uf9VAAD/4v/2//X/1f/S/7X/xPoM5u4elwtMT4LTtgu3FqLSthFk+HvyxwgPCfMRsQG3zur7hA TZAtP+uPifAff5yPo//D/6hP1I/d39/v4o/6L/6P/3AAAAAv/m//EABv/MBMEdDBNI9DnaSC3uKc/3v7jW3n0BNP5j/X4Ps/tg/gnWyPoP6q780/gS8ST47vXi93H4t+8C+G78V/p++sX95f88/07/b/+S/4f/c/8j/wrpgh9V4KT9HSpw4h8+y9CUHbXk5PxX9Kn79xny2v/7rQrd/qPmjfoRCor6KfJsALICxv29+p7+8AAA/1n/Q/7D/9v/nv+L/6n/sP+Y/5P/zhwX2XVaTPwG3XjYiBS08sIbUOei+nj2oP9pDVv79f/KEeUAFuuqAPMLigJM+gX/TwOr/wj9zwBMAIsAkAA+/4YAA//n/9D/0f/s//P/xf/eNC0oGA==
iTunNORM: 000005C3 00000651 000057A7 00005257 00018B0B 00018B0B 00008000 00008000 0000C8E4 0000C352
iTunes_CDDB_IDs: 11+0DD311268C9E061EDEE92B3A6E5D7A06+808691
Encoded By: dBpoweramp Release 13



========================================
Audio Details for: J:\DMC_Test\Alison Krauss\Forget About It\01 Stay.flac

Length: 3 minutes 25 seconds
Channels: 2 (stereo)
Sample Rate: 44.1 KHz
Sample Size: 16 bit
Bit Rate: 1,411 kbps (CD)

Audio Properties:

Audio Quality: Perfect (Lossless)
Encoder: FLAC reference libFLAC 1.2.1 20070917
Sample Count: 9,072,640
Contains: CRC
Gapless: Yes

Output Location : Dynamic - [IFCOMP]Compilations\[album]\[track] [title] - [artist][][IF!COMP][artist]\[album]\[track] [title][]
Which works, so the tags are read, just not copied to the output files.

[Spoon]

Re: Converting Lossless m4a to flac with tags

One last check, that now DSP effects are running, such as ID Tag Processing. If not then please email the m4a file:

http://www.dbpoweramp.com/email.htm

[Wirrunna]

Re: Converting Lossless m4a to flac with tags

Confirm that no DSP effects are running.
Track emailed.

[Spoon]

Re: Converting Lossless m4a to flac with tags

The file was corrupted, there are 8 samples missing from the end. There will be a beta of a new m4a codec which has the option to ignore errors.

[Wirrunna]

Re: Converting Lossless m4a to flac with tags

Spoon, thank you for investigating this problem. I look forward to the new codec.
I am also interested in how you determined that there were 8 samples missing from the end of the track. Is the analysis software available to mere mortals that can flag these errors? These missing samples may explain static noise heard at the end of some m4a tracks played through a Slimserver.

[Spoon]

Re: Converting Lossless m4a to flac with tags

Which program put those analysis tags onto the file? I have a feeling it was that program which write the wrong sizes.

dBpoweramp will inform of the issue in its current form, when converting, pause it and select the option \/ and choosed after conversion show the information log.

[Wirrunna]

Re: Converting Lossless m4a to flac with tags

Which program put those analysis tags onto the file? I have a feeling it was that program which write the wrong sizes.

MusicIP put the analysis tags onto the file.

The information log does show the message "Error Chunk is out of file."
I should have looked at that before I posted (but I had not discovered it!)